Palaeomagnetic Pole Positions, Part I.

Optimal Pole Placement for LTI-TDS via Some Advanced Iterative Algorithms - Part I: Theory

This paper is focused on optimal pole assignment for control feedback systems with delays in the dynamics which usually appear when a plant contains delays. Generally, a system with internal delays, also called time-delay, has an infinite spectrum thus it is not possible to place all feedback poles to the prescribed positions exactly by a finite number of free (controller) parameters. We concen...

Gaussian statistics for palaeomagnetic vectors

S U M M A R Y With the aim of treating the statistics of palaeomagnetic directions and intensities jointly and consistently, we represent the mean and the variance of palaeomagnetic vectors, at a particular site and of a particular polarity, by a probability density function in a Cartesian three-space of orthogonal magnetic-field components consisting of a single (unimodal) non-zero mean, spher...

Part] I I

Part I : Part Ii : Part Iii : Part Iv

The theory of stick-slip is developed, based on the concept of a static and dynamic coefficient of friction. The dynamic coefficient is assumed to be independent of displacement and to depend wholly on normal stress across the surface. It is also assumed to be velocity-independent. The theory predicts that the stress drop during stick-slip is independent of machine stiffness. The displacement d...

Distal Approaches in Patellofemoral Pain: A Systematic Review, Part I

Purpose: Increased patellofemoral joint reaction force (PFJRF) is the main cause of patellofemoral pain syndrome (PFP). Foot pronation causes faulty joint coupling of the lower limb and increases the PFJRF. Therefore, the aim of systematic review is effect of the distal interventions on the clinical symptoms and kinematic of PFP patients.   Methods: The search strategy was carried out from Goo...